Auto-Tuning PID ControllersSingle-LoopAvailable in 1/32, 1/16, 1/8 and 1/4 DIN sizes, this single-loop, auto-tuning temperature controllers automatically set PID control parameters for optimum system performance. Manual settings also permit on-off, P, PI or PID control modes. All auto-tuning controllers are designed and manufactured to withstand harsh industrial environments and come with a one-year warranty for Control Confidence